Create a new Cloud Platform Console project, or open an existing project by
selecting the project name.
Important:
The name you use must be between 4 and 30 characters. When you type the name,
the form will suggest a project ID, which you can edit. The project ID you use
must be between 6 and 30 characters, with a lowercase letter as the first character.
You can use a dash, lowercase letter, or digit for
the remaining characters, but the last character cannot be a dash. Also,
you
should be aware that some resource identifiers (such as project IDs) might be
retained beyond the life of your project. For this reason, avoid storing
sensitive information in resource identifiers.
...see naming guidelines

The Cloud Platform Console shows you how the disk type and number of
nodes affect the number of queries per second (QPS) and megabytes per
second (MB/s) your cluster can handle, as well as the cost for your
cluster.